How to Plant Guava Seeds
Growing tropical guava in a greenhouse or on a protected porch from seed is a fun project to try. In tropical climates, guava trees grow up to 12 to 14 feet tall, but kept in a container, they stay small enough for a covered porch or small greenhouse. Commercial growers use grafted trees to get specific fruit characteristics, but in the home garden, growing guavas from seed is a simple and fun way to add to the garden landscape. Grow guava outdoors in U.S. Department of Agriculture plant hardiness zones 9a through 10b. In the chillier zone 8 areas of the region, keep your guava tree in a pot on a sunny, covered porch in winter.
Place guava seeds in a pot of boiling water, and boil for five minutes to break seed dormancy and speed germination.
Fill a 4-inch nursery pot with soilless seed-starting mix.
Press one guava seed into the center of the pot. Use your thumb to gently press the seed under the soilless mix, and cover it with 1/8 to 1/4 inch of the mixture.
Soak the pot with water using a gentle misting spray or the soak setting on the hose, to avoid disrupting the seed.
Place the pot in a warm place with a temperature of 65 degrees Fahrenheit or above. Guava seeds germinate in two to eight weeks.
Keep the soilless mix moist by watering when the top of the soil starts to feel dry under your finger.
Things You Will Need
Heatproof watertight pot
4-inch planting pot
Soilless seed-starting mix
An alternative to boiling the seeds is to soak the guava seeds in water for two weeks prior to planting. Seed treatments, called stratification, allow the seed coat to soften and germinate. Different seeds require different preplanting treatment.
In cool climates, placing the pot on a heating pad designed for seed starting helps maintain a consistent temperature of 65 F.
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- California Rare Fruit Growers, Inc.: Tropical Guava
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- University of Hawaii: Guava: General Crop Information
Eulalia Palomo has been a professional writer since 2009. Prior to taking up writing full time she has worked as a landscape artist and organic gardener. Palomo holds a Bachelor of Arts in liberal studies from Boston University. She travels widely and has spent over six years living abroad.
How to Plant Guava Seeds. Growing tropical guava in a greenhouse or on a protected porch from seed is a fun project to try. In tropical climates, guava trees grow up to 12 to 14 feet tall, but kept in a container, they stay small enough for a covered porch or small greenhouse. Commercial growers use grafted trees to …